For the 2014 GSS, a prediction equation relates y =

highest year of school completed to x = father’s highest year of school completed.

(a) Which equation is more realistic for the result: ˆy =

9.57 + 0.35x, or ˆy = 0.35 + 9.57x?Why?

(b) Suppose the prediction equation had been ˆy = x.

Identify the y-intercept and slope, and interpret the slope.